The new Fallout 3 Mothership Zeta trailer was just released by Bethesday. Mothership Zeta will be the fifth and probably the last Fallout 3 DLC, to be released on August 3, 2009 for the Xbox Live and Games for Windows Live. The PlayStation 3 version is to be released after Point Lookout.

The add-on will cost 800 Microsoft points or $9.99. It won’t be part of any of the Fallout 3 Game Add-on Packs, and the only disc release it will be available with is Fallout 3 Game of the Year edition.